1. Ken Arnold and James Gosling. The Java Programming Language. Addison-Wesley, Reading, Mass., 1996.
2. Sophia Drossopoulou and Susan Eisenbach. Java is Type Safe — Probably. In Mehmet Aksit, editor, Proc. 11
th
Europ. Conf. Object-Oriented Programming, volume 1241 of Lect. Notes Comp. Sci., pages 389–418, Berlin, 1997. Springer.
3. James Gosling, Bill Joy, and Guy Steele. The Java Language Specification. Addison-Wesley, Reading, Mass., 1996.
4. Doug Lea. Concurrent Programming in Java. Addison-Wesley, Reading, Mass., 1997.
5. Wei Li. An Operational Semantics of Multitasking and Exception Handling in Ada. In Proc. AdaTEC Conf. Ada, pages 138–151, New York, 1982. ACM SIGAda.